Juice-straining system for sugar-cane mills



May s, 1928.

W. G. HALL JUICE STRAZNING SYSTEM FOR SUGAR CANE MILLS Filed Jan. 29, 1926 Patented May 8, 1928. I if i i UNITED STATES PATENT OFFICE.

WILLIAM G. -HaLnoF noNoLuLu, 'rnmtrromr or HAWAII. i i

JUICE-STRAINING sYs'rnM FOR sUGAn-oAnE MILLS.

Application filed January 29, 1926. Serial No. 84,657.

he invention relates to a juice straining mixed juice fromsaid pans to the top of the 55 system for sugar cane mills and has for its blanket of bagasse on the intermediate conobject to provide a juice strainer associated veyer 20 between the first and second mills. with an intermediate conveyer,preferably The pan 11 of the third mill is connected 5 between the first and second mills, with by pipe 12 to a pump 13, which has a means for delivering the mixed juice from discharge pipe 14 delivering the juice to a 0 the several mills to the bagasse on said inmaceration distributor above the intert'ermediate conveyer, so that the filtering mediate conveyor 20. Pan 11 is connected action of the bagasse upon the juice will by pipe 12 to the pump 13 whence it is In supplement the action of the strainer, forced through pipe 14: to a maceration located in thebottom of the trough-of the distributor 15 above the conveyer be- 65 conveyer, whereby the strained mixed juice tween the second and third mills. The will be in proper condition for immediate usual water maceration supply is prodelivery to the boiling house. A further vided above the final intermediate conveyor advantage of the arrangement of the screen 20 \Vith this particular arrangement for or strainer in the location indicated, is that distribution of the juice, it will be noted 70 the normal operation of the conveyer mechthat the juice from all of the elements of anism in feeding the bagasse to the sucthe mill is ultimately discharged onto the ceeding mill will scrape the surface of the bagasse blanket travelling through the inter- A screen and prevent the latter clogging up mediate conveyer 20., The bulk of the juice with cush cush. being that expressedby the crusher 1 and, 7 The invention is illustrated in the accomin the. first and second mills, is delivered panying drawings, in which directly to the top ofthe intermediate con- Fig. 1 is a diagrammatic. side elevation veyer 20 by pump 13, while the juice ex- 145 of a four unit mill, involving the invention. pressed by the third and fourth mills is Fig. 2 is a diagrammatic plan view of ultimately all delivered to the bagasse on 80 the intermediate conveyer having the juice intermediate. conveyer 20 by pump 13 and screen or strainer located in the bottom of distributor 14L. the trough thereof. i Mounted in the bottom of the trough of Referring to thedrawings, 1 indicates a intermediate conveyer 20 is a screen or typical crusher to which the cane is fed strainer 22, lying above ahopper-like reand, after being crushed, is carried by a ceptacle 23 secured to the under sideof the conveyer 3, enclosed in [housing 2, to' a conveyer trough and having an outlet 24 shredder 6, which latter delivers the shredat its bottom adapted to be connected to ded cane by a conveyer T to the first mill the pipe leading directly tothe boiling house. 10. The juice expressed by the, crusher By means of thisrelatively simple arrange passes into the bottom section 4 of the'boot ment for the distribution and straining of of the conveyer 3 and is then delivered by the mixed juice, the danger of inversion, the spout 5 to the juice pan 11 of the first which is one of the objections the elabo- 40 mill. I rate strainer installations heretofore employ- Between each of the mills is located the ed, is wholly obviated, and the mixed juices .5 usual intermediate conveyer, separately infirst filtered through the blanket ofbagasse dicated by the reference numerals 20, 20 on the first intermediate conveyer and then and 20 each conveyer being provided with through the strainerin the bottom of said an endless chain -and slat scraper 21, which conveyer, is delivered to the boiling house serves to move the bagasse over the bottom substantially free from bagasse'or impuriof the conveyer trough from one mill to ties, and, by reason of the constant travel the next. The second, thirdv and fourth ofthe bagasse and theconveyer slats over mills 10, 10 and 10 are provided with the screen, the latter is kept free from the'usual juice pans 11, 11 and'11 reobstructions, so that the straining operation spectively. The pans 11 and 11" of the first is, continuous and effective. and second mills are connected by pipes 12 VVhat I claim is: and 12 with a pump 13, which is provided 1. In a' sugar cane mill, an intermediate with a discharge pipe 14 delivering the conveyer comprising a. trough and an endless chain scraper operating therein, means for delivering the mixed juice on top of the bagasse on said conveyer, a strainer in the bottom of the conveyer engaged by the 5 scraper, and a receptacle for the strained juice below the strainer.

2. In a system ofthe class described, the

combination of a train of'mil'ls and their intermediate conveyers, a strainer located in the bottom of the conveyer between the first and 7 second mills, a receptacle below the strainer, and means for delivering the mixed juice onto the top of the bagasse on the conveye'r containing the strainer.

In testimony whereof I atlix my signature.

lVILLIAM G. HALL. 

